The numbers

1234567891011121314151617181920
Across
  1. 5. three
  2. 8. seventeen
  3. 10. sixteen
  4. 11. twelve
  5. 14. two
  6. 15. five
  7. 16. ten
  8. 17. nineteen
  9. 19. fourteen
Down
  1. 1. four
  2. 2. seven
  3. 3. eight
  4. 4. one
  5. 6. six
  6. 7. thirteen
  7. 9. fifteen
  8. 12. eighteen
  9. 13. eleven
  10. 18. nine
  11. 20. twenty